ACEX 1K Programmable Logic Device Family Data Sheet
Figure 11. ACEX 1K LE Operating Modes
Normal Mode
Cascade-In
Carry-In
LE-Out to FastTrack
Interconnect
data1
data2
PRN
4-Input
LUT
D
Q
data3
LE-Out to Local
Interconnect
ENA
CLRN
data4
Cascade-Out
Cascade-In
Arithmetic Mode
Carry-In
LE-Out
PRN
data1
data2
D
Q
3-Input
LUT
ENA
CLRN
13
3-Input
LUT
Cascade-Out
Carry-Out
Up/Down Counter Mode
Cascade-In
Carry-In
data1 (ena)
data2 (u/d)
PRN
3-Input
LUT
1
0
D
LE-Out
Q
data3 (data)
ENA
CLRN
3-Input
LUT
data4 (nload)
Carry-Out
Cascade-Out
Clearable Counter Mode
Carry-In
data1 (ena)
data2 (nclr)
PRN
3-Input
LUT
LE-Out
D
Q
1
0
data3 (data)
ENA
CLRN
3-Input
LUT
data4 (nload)
Carry-Out
Cascade-Out
Altera Corporation
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ALTERA [ ALTERA CORPORATION ]
